Following the Council, Pope Gregory again looked to the Dominican friars, this time to spread devotion to the
Holy Name of Jesus. John took the task to heart, requiring that every Dominican church contain an altar dedicated to the Holy Name. The
Society of the Holy Name was formed to combat
blasphemy and
profanation of this name. Pope Gregory returned to Italy at the end of 1275, but illness ensured that he never reached Rome. He died at Arezzo on January 10, 1276. His new regulations for conclaves "
Ubi Periculum", promulgated at the Council of Lyons, were applied for the first time, and a one-day Conclave (January 20–21, 1276), produced a new pope, the Dominican Innocent V. The General Chapter that year met in Pisa in May, and the pope sent his greetings to his brethren, but he died suddenly on June 22, 1276. The Conclave to elect his successor began on July 2, and lasted ten days. Cardinal Ottobono Fieschi was elected on July 11, 1276, and took the name Adrian V. In August, even before his consecration and coronation, he travelled to Viterbo, partially to escape the Roman summer, but also because he wished to meet with the Emperor-elect Rudolf. He died in Viterbo only thirty-seven days after his election, on August 18. At some point during this whirlwind of disasters, John of Vercelli reached the Papal Curia. This was not surprising, since, after a General Chapter, and this one in Pisa, the leaders of the Order of Preachers would have business of all sorts to do with the Curia; the decision to go to Rome was much happier, since one of their own had been elected pope. After his death, they had no alternative but to wait until the new pope was willing and able to do business with them. The death of Adrian V at Viterbo meant that the Dominican leaders were in Viterbo for the third Conclave of 1276. It should have begun on August 29 or 30, but there were disorders in the town, caused, it seems by curial agitators who wanted a quick election. The cardinals were forced to remonstrate with the disorderly mob, and they sent three Dominicans, the Archbishop of Corinth (Petrus de Confluentia), the Master General of the Dominicans (John of Vercelli), and the Procurator General (Ioannes Vereschi), to carry their reproof to the citizens of Viterbo and the unruly Curia. Insults were hurled at the messengers, and stones were thrown. Once order was restored, however, the Conclave began, and in one day, on September 8, produced a new pope, Cardinal Peter Julian of Lisbon, who chose to be called John XXI. On October 15, Pope John XXI appointed John of Vercellae, as well as Hieronymus, the Minister General of the Franciscans, as Apostolic Legates to go to France to arrange a peace between King Philip and King
Alfonso X of Castile. The urgency of their mission was repeated in a letter from the College of Cardinals, written during the Sede Vacante following the death of Pope John XXI on May 16, 1277. Pope Nicholas III repeated the same urgent wish for peace directly to King Philip III of France and King
Alfonso X of Castile, with a recommendation for John of Vercellae and Hieronymus Masci. On March 12, 1278, Hieronymus Masci was named a cardinal, but the legates had their orders reinforced by a letter from Nicholas III dated April 4, 1278. Another letter was sent to Masci on April 23, urging him to conclude the embassy as soon as possible, since his services were urgently needed in the Roman Curia. ==Later Years, 1278–1283==